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ICD-10-CM 2027 diagnosis code

T84.3Mechanical complication of other bone devices, implants and grafts

Not billable — use a more specific codeRequires 7th character

T84.3 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it and add the required 7th character.Short description: Mechanical complication of bone devices, implants and grafts

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About T84.3

T84.3 is the ICD-10-CM diagnosis code for mechanical complication of other bone devices, implants and grafts. It belongs to category T84 (complications of internal orthopedic prosthetic devices, implants and grafts), block T80-T88 (complications of surgical and medical care, not elsewhere classified) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within T84, choose T84.3 (Mechanical complication of other bone devices, implants and grafts) only when documentation doesn't support a more specific option: mechanical complication of internal joint prosthesis (T84.0), mechanical complication of internal fixation device of bones of limb (T84.1), mechanical complication of internal fixation device of other bones (T84.2), mechanical complication of other internal orthopedic devices, implants and grafts (T84.4), infection and inflammatory reaction due to internal joint prosthesis (T84.5), infection and inflammatory reaction due to internal fixation device (T84.6), infection and inflammatory reaction due to other internal orthopedic prosthetic devices, implants and grafts (T84.7), other specified complications of internal orthopedic prosthetic devices, implants and grafts (T84.8) and 1 more.

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

The conditions in its Excludes2 note aren't part of T84.3, but may be coded alongside it if the patient has both: other complications of bone graft (T86.83-).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

7th character

The appropriate 7th character is to be added to each code from category T84

  • Ainitial encounter
  • Dsubsequent encounter
  • Ssequela

Coding notes

Excludes2Not included here — may be reported together if both conditions exist
  • other complications of bone graft (T86.83-)

Notes that apply from higher levels

Instructions written at a parent level also apply to T84.3.

› From T84 Complications of internal orthopedic prosthetic devices, implants and grafts
Excludes2
  • failure and rejection of transplanted organs and tissues (T86.-)
  • fracture of bone following insertion of orthopedic implant, joint prosthesis or bone plate (M96.6)

Broader instructions also apply from T80-T88 Complications of surgical and medical care, not elsewhere classified and Chapter 19: Injury, poisoning and certain other consequences of external causes.

Codes whose notes reference T84.3

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about T84.3

Is T84.3 billable?

No. T84.3 is a header code. Report one of its more specific subcodes instead.